Warren Buffett advises people to make career choices based on inspiring leaders and not waste time in steppingstone positions. Marcel Schwantes adds, "It speaks volumes to how far and fast a career can advance when you're under the leadership of someone who cares about you as an employee and human being."

It isn't the easiest career advice to follow, but research tells us forgoing the higher salary and bigger job title for the sake of having more personal time produces happier lives, writes Jessica Stillman. Harvard professor Ashley Whillans recommends turning commute time to reading time by taking an Uber or bus to work more often.

Social media posts are more effective if it's understood what content is most appropriate for specific platforms, writes career strategist Avery Blank. Opinions belong on Twitter, socializing on Facebook and professional branding on LinkedIn.

One reason millennials change jobs is that they want access to benefits such as student-loan assistance and matching 401(k) contributions, according to a survey by LaSalle Network. Millennials also value flexible working arrangements and paid time off.

Upwork has released its latest report on the 20 skills most in demand, and 75% of them are new. Hadoop, a data analytics program, tops the list, and others indicate employers need people who can combat cybercrime and improve customer outreach.

People should ask for an informational interview with someone who works in a field they're interested in to learn whether it will be a good fit and what skills are needed, writes Arnie Fertig. Ask what steps to take to land a position and what a typical day is like.

Studies reveal different reasons for restricting your overtime hours, including an increased risk of musculoskeletal disorders that are caused by spending less than 10 hours away from your desk. Other concerns include short-term memory problems, an increase in mistakes caused by sleep deprivation and relationship problems at home.

There are approximately 2,000 more bacterial populations in the guts of humans than previously known, according to a study published in the scientific journal Nature. "Research such as this is helping us create a so-called blueprint of the human gut, which, in the future, could help us understand human health and disease better and could even guide diagnosis and treatment of gastrointestinal diseases," said study co-author Trevor Lawley.